What is Geothermal?

/What is Geothermal?
What is Geothermal?2018-11-17T08:11:04+00:00

Clean & Renewable Heating

Rather than burning gas, propane or oil, geothermal systems (sometimes also referred to as geo-exchange or ground source heat pumps) use the Earth as heat exchanger to provide for year-round heating and cooling for virtually any type of building in any type of climate.

In the winter, the system extracts energy from the ground to provide heating. In the summer, the system reverses and deposits heat from the house back into the ground to provide cooling.
The energy we extract from the ground is renewable and comes from the Sun. Almost 50% of the Sun’s daily energy that hits our planet is absorbed by the ground. Geothermal technology captures this energy to create a heating system which uses 80% less energy than conventional heating systems.

Geothermal systems can be broken down into 3 main components

groundloop

The Ground Loop

Most commonly we drill a number of vertical boreholes in which we install HDPE prefabricated geothermal loops. Residential boreholes will typically vary between 200-300ft depth. Commercial installations often involve deeper boreholes. Water plus antifreeze circulates through the ground loop system to enable energy transfer between the Earth and the building.

heatpump

The Geothermal Heat Pump

The geothermal heat pump is located in the mechanical room and sometimes looks much like a furnace. The heat pump is connected to the ground loop and through refrigeration technology either extracts energy from the ground loop fluid (in heating mode) or deposits energy to the fluid (in cooling mode).

distribution

The Distribution system

Similar to conventional systems, geothermal heating and cooling can be distributed through either a forced air duct system, radiant in-floor, or a combination of both.